com.google.appengine.api.taskqueue

## Interface DeferredTask

- All Superinterfaces:
    java.lang.Runnable, java.io.Serializable

      public interface DeferredTask
      extends java.lang.Runnable, java.io.Serializable

  Interface for deferred tasks. Classes implementing this interface may use `TaskOptions.payload(DeferredTask)` to serialize the `DeferredTask` into the payload of the task definition. The `Runnable.run()` method will be called when the task is received by the built in DeferredTask servlet.

  Normal return from this method is considered success and will not retry unless `DeferredTaskContext.markForRetry()` is called. Exceptions thrown from this method will indicate a failure and will be processed as a retry attempt unless `DeferredTaskContext.setDoNotRetry(boolean)` was set to `true`.

- - ### Method Summary

    - ### Methods inherited from interface java.lang.Runnable

      `run`